Bicycle-whistle



P. J. HALL.

- BICYCLE WHISTLE.

Patented Mar. 7,' 1893.

(No Model.)

SES

UNITED STATES PATENT CFFioE.

FRED J. HALL, OF WALLINGFORD, CONNECTICUT.

BICYCLE-WHISTLE.

SPECIFICATION forming part of Letters Patent No. 492,887, dated March 7,1893.

Application filed July 16, 1892.

To all whom it may concern.-

Be it known thatI, FRED J. HALL, a citizen of the United States,residing at Wallingford,

in the county of New Haven and State of Connecticut, have inventedcertain new and useful Improvements in Bicycle-Whistles; and I dodeclare the following to bea full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form a part of this specification, and represent, in-

Figure 1 an elevation of a whistle provided with my improvements thebarrel of the same being sectioned longitudinally to show the locationof the partition, and the filling or stop at the bottom of one of thecompartments formed thereby. Fig. 2 is a view in section taken throughthe line X. Fig. 3 is a section on the line Z.

In the drawings similar letters denote the same parts throughout theseveral views.

This invention relates to improvements in bicycle Whistles and isdesigned as an improvement of the whistle shown in the patent to Johnsonof January 29, 1889, and assigned to me May 15, 1890.

The object of this invention is to produce a cheap, and simple whistleof that type commonly termed duplex or chime whistles.

I'Ieretofore whistles of this character have been produced by placingtwo tubes, or barrels of unequal length side, by side, so that whenblown upon they produce simultaneously each a different tone.

This invention consists in placing a partition longitudinally in asingle tube, or barrel and then partially filling one of thecompartments thus formed which as will readily be seen will produce thesame results when blown upon as the long and short tubes at the sameSerial No. 440.270. (No model.)

time reducing the cost of production materially as well as producing amuch neater'and compact whistle.

In the drawings A is the mouth-piece, B the barrel, (1. a. a. thearch-shaped stays for connecting the mouth-piece and the barreltogether.

C is the longitudinal -partition which experiment has shown must beextended somewhat above the top edge of the barrel in order to securethe best results, and D is a stop or filling fitted into one of thecompartments thereby forming a shallow compartment upon one side of thepartition.

The mouth-piece is provided with a valve as shown in the patent toJohnson hereinbefore referred to, but forming no part of the presentinvention it is deemed unnecessary of illustration.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is r 1. In a whistle, of the character describe thecombination with a mouth-piece ofa barrel provided with a longitudinalpartition extending somewhat above the upper edge thereof substantiallyas and for the purpose set forth. 7

2. In a whistle of the character described, the combination withmouth-piece of a. barrel provided with a longitudinal partitionextending somewhat above the upper edge thereof, and a stop, or fillingin one of the compartments formed in said barrel by said partitionsubstantially asand for the purpose set forth.

In testimony whereof I atfix my signature in presence of two witnesses.

FRED .T; HALL. Witnesses:

JAS. B. BROGDEN, OswIN H. D. FOWLER.

